2(2)-4(4)=
4-16=
-12
not listed for some reason
Answer:

Step-by-step explanation:
For this, you need to know the rules of exponents:
If the coefficient is the same, you can do things to it (which I will get into)
In this case, all the coefficients are 11, so we don't have to worry about the coefficients being different.
For the first one, you can subtract the denominator exponent by the numerator exponent like so:

(When you multiply, you add the exponents)
Also, the rule is:
or 
For the second one, you can use the rule mentioned before:

For the third one, you want to multiply the exponents (in these kinds of cases, you can multiply the exponent by the exponent)
So:

Finally, the fourth one, you can simply just add the exponents:

Then, just order them from least to greatest by their exponents value :)
Answer:
x=15
Step-by-step explanation:
You need to do proportions.
Since 16/12 = 1.3333333333333333333,
than you need to divide 20 by 1.323333333, so 20/1.3333333333333= 15
Answer:
90 degrees
Step-by-step explanation:
triangles add up to 180 degrees so if triangle jkl is the same as triangle rst then you add 35 to 55 and you now have t isolated with 90 degrees left in your triangle so it's 90 degrees.
Answer:
The Answer is -16
Step-by-step explanation:
The equation to this would be -352 / 22, which would give you 16, hope this helped!